BIOS 254 Chapter 12_13 Lecture HW

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BIOS 254 Chapter 12_13 Lecture HW

• Special senses arise from receptors located

–Answer primarily in the head.

• The Golgi tendon organ is stimulated more when

–Answer

• A cochlear implant treats

–Answer sensorineural deafness.

• Treatment for cataract is usually removal of the

–Answer lens.

• As they extend from the retina to the brain, the nerve fibers

–Answer from the nasal half of each retina cross over.

• If a person's right visual cortex is damaged, the injury will most likely affect vision from the

–Answer nasal side of one eye and the temporal side of the other eye.

• Taste receptors are

–Answer modified epithelial cells.

• Fibers of the spinothalamic tract transmit information to the

–Answer thalamus.

• The condition in which some parts of an image are in focus on the retina and other parts are

blurred is called –Answer astigmatism. 1 / 2

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• Light is refracted when it passes

–Answer between media of different optical densities at an oblique angle.

• Sensory impulses are stimulated at receptors by

–Answer changes in action poten- tials.

• A pole vaulter keeps track of his position in mid-air through

–Answer proprioceptors

• Arnold enters a darkened movie theater on a sunny summer afternoon. It takes many

minutes for his eyes to adapt to the darkness because –Answer it takes some time for the retina to rebuild its rhodopsin stores from opsin and retinene.

• Henry has hereditary sensory and autonomic neuropathy. He lacks

–Answer noci- ceptors.

• Smell and taste disorders may be caused by

–Answer all of the above.

• Which of the following are paired correctly?

–Answer all of the above

• A person who is colorblind lacks

–Answer one type of photopigment.

• A chimp adopts two orphaned tiger cubs. They live in a zoo. The chimp has a more intense

visual world than his adopted offspring because –Answer she has three types of cones that connect individually to neural pathways to the brain. The cubs only have two types.

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